@book{42407,
	author = {López Agüí, Juan Carlos. and e-libro, Corp.},
	title = {Nuevas especificaciones del hormigón y su resistencia},
	publisher = {AENOR,},
	year = {2010.},
	address = {Madrid :},
	url = {https://elibro.net/ereader/politecnicointernacional/53566}
}